COS proudly presents Flock Club - a social event by and for birders. Join us as we gather to share our passion for birds in a casual and accessible environment.
Join COS for the 76th Annual Lisle Christmas Bird Count and Dinner! Every year on a wintery Sunday in December, birders sally forth to count birds and contribute their sightings to the oldest continuously running citizen science project in the world.
In partnership with the Chicago Park District, come and learn about the raptor of the night- the owl! This interpretive program and guided walk will lead participants through the preserve in search of owls.
In cooperation with Third Coast Birding and Peggy Notebaert Nature Museum, COS is proud to continue our long tradition of Wednesday morning bird walks at North Pond!
Join COS for the annual Chicago South Christmas Bird Count! Every year on Christmas day, birders sally forth to count birds and contribute their sightings to the oldest continuously running citizen science project in the world.
Join COS for the annual Lakefront Christmas Bird Count! Every year on Christmas day, birders sally forth to count birds and contribute their sightings to the oldest continuously running citizen science project in the world.
In partnership with the Chicago Park District, come and learn about the raptor of the night- the owl! This interpretive program and guided walk will lead participants through the preserve in search of owls.
